package org.shiwen.week3.friday;

import java.util.Scanner;

public class q1 {
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        System.out.println("身高（单位：m）");
        double height=sc.nextDouble();
        System.out.println("体重（单位：kg）");
        double weight=sc.nextDouble();
        double bmi=weight/(height*height);
        System.out.println("你的bmi值："+bmi);
        if(bmi<18.5){
            System.out.println(1);
        }else if(bmi>=18.5&&bmi<25){
            System.out.println(2);
        }else if(bmi>=25&&bmi<30){
            System.out.println(3);
        }else{
            System.out.println(4);
        }
    }
}
